1. Providing stable torque: Constant torque springs can provide high torque with minimal space requirements, making them suitable for medical devices that require precise torque control.

2. Motion control: It is commonly used for motion control in surgical robots and negative pressure wound therapy devices, as well as cable and wire management.

III. Power spring
Functional use:
1. High force output: The power spring can provide high force output within a small package size, making it suitable for medical devices that require strong force.

2. Diverse applications: It is commonly used in automatic injectors to deliver high-viscosity drugs, and also used to drive surgical staplers and other devices.
IV. Double spring
Functional use:
1. Space optimization: The dual-spring design can minimize space occupation while meeting the strict force requirements of the equipment.
2. Reliable and Durable: They ensure consistent and reliable force on the device, and are commonly used for installing and driving hardware in surgical sutures.

5. Gas spring (such as ACE gas spring)
Functional use:
1. Stable force: The ACE gas spring utilizes gas (usually nitrogen) as the elastic medium, providing continuous and stable support through the compressibility of the gas.
2. Height adjustment: In medical equipment such as surgical tables and examination tables, gas springs can provide smooth and precise height adjustment, ensuring stability and comfort during surgery or examination.
3. Wide applicability: It is also widely used in wheelchairs, rehabilitation equipment, etc., providing stable support for the equipment, helping to adjust height, and enhancing user experience.

Summary: Medical springs, as an important component of medical equipment, come in a wide variety of types with diverse functions. From the smooth motion control of constant force springs, to the stable torque output of constant torque springs, to the high force output and spatial optimization of dual springs, and the stable power support of gas springs, these springs collectively provide important guarantees for the precision, stability, and efficiency of medical equipment. With the continuous development of medical technology, the application of medical springs will become more extensive and profound.